Crown Macro-Tech 2402, Service Manual, Page: 7 / 90

Introduction 1-1
130445-1 Rev. A MA-2402 Service Manual
©2000 Crown International, Inc.
1.1 Introduction
This manual contains complete service information
on the
Crown ®
MA-2402 power amplifier. It is designed
to be used in conjunction with the Reference Manual;
however, some important information is duplicated in
this Service Manual in case the Reference Manual is
not readily available.
NOTE: THE INFORMATION IN THIS MANUAL IS
INTENDED FOR USE BY AN EXPERIENCED TECH-
NICIAN ONLY!
1.2 The MA “02” Series Amplifiers
The
Macro-Tech ®
series is a complete family of am-
plifiers designed for pro sound reinforcement. Macro-
Tech amplifiers are designed to provide enormous
levels of pure, undistorted power in a rugged low-pro-
file package, utilizing Crown's patented
Grounded
Bridge™ output topology. They also employ Crown's
patented
ODEP ®
protection circuitry, which keeps the
amplifier working under extreme conditions that would
shut down a lesser amplifier. Crown's new
Macro-Tech
“02” series amplifiers feature Crown's enhanced
PIP2™ (Programmable Input Processor) expansion
system. The
PIP2 expansion system makes it easy to
tailor the amplifier to a specific application. Providing
high power amplification from 20 Hz to 20 kHz with
minimum distortion, Macro-Tech series amplifiers fea-
ture balanced inputs with bridged and parallel mono-
phonic capability. Specific features vary depending
on model.
1.3 Scope
This Service Manual in intended to apply to all ver-
sions of the MA-2402 amplifier. The Parts Listings in-
clude parts specific for the US version and the Euro-
pean version (E13CE). For parts specific only to other
versions contact the Crown Technical Support Group
for help in finding part numbers.
1.4 Warranty
Each Reference Manual contains basic policies as
related to the customer. In addition, it should be stated
that this service documentation is meant to be used
only by properly trained personnel. Because most
Crown products carry a 3-Year Full Warranty (includ-
ing round trip shipping within the United States), all
warranty service should be referred to the Crown Fac-
tory or Authorized Warranty Service Center. See the
applicable Reference Manual for warranty details. To
find the location of the nearest Authorized Warranty
Service Center or to obtain instructions for receiving
Crown Factory Service, please contact the Crown
Technical Support Group (within North America), or
your Crown/Amcron Importer (outside North America).
If you are an Authorized Warranty Service Center and
have questions regarding the warranty of a product,
please contact the Field Service Manager or the Tech-
nical Support Group.
Crown Customer Service
Technical Support Group
Factory Service
Parts Department
Mailing Address: P.O. Box 1000, Elkhart IN 46515
Shipping Address: Plant 2 S. W.
1718 W. Mishawaka Rd., Elkhart IN 46517
Phone: (219) 294-8200
Toll Free: (800) 342-6939
Fax: (219) 294-8301
http://www.crownaudio.com
1 Introduction